81388486

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1\times {\mathrm{193}}^1$

素因数の和:448

約数の個数: 32

約数和(自身を含む): 132416640

約数和(自身を除く): 51028154

約数列:

[1, 2, 17, 34, 79, 157, 158, 193, 314, 386, 1343, 2669, 2686, 3281, 5338, 6562, 12403, 15247, 24806, 30301, 30494, 60602, 210851, 259199, 421702, 515117, 518398, 1030234, 2393779, 4787558, 40694243, 81388486]

約数ペア:

[(1, 81388486), (2, 40694243), (17, 4787558), (34, 2393779), (79, 1030234), (157, 518398), (158, 515117), (193, 421702), (314, 259199), (386, 210851), (1343, 60602), (2669, 30494), (2686, 30301), (3281, 24806), (5338, 15247), (6562, 12403)]